This really had a large effect at reducing noise on my pedalboard. I was previously running two Pedal Power 2+ units, but now I run one of those and one Digital. The Digital runs my Nova Delay, Nova Mod, Holy Grail, and Verbzilla. I had a bit of noise before as I often have the loops containing the Delay, Mod, and Verb on at the same time, but now it is VERY quiet.